Unable to Filter DataTable Using DataView

DataTable dtTableInput = new DataTable();
            dtTableInput = GetDataTable();
            DataSet dsFinal = new DataSet();
            DataTable dtServcice = new DataTable();
            for (int i = 0; i <= dtDistinctValues.Rows.Count - 1; i++)
            {

                DataView dv = dtTableInput .DefaultView;
                dv.RowFilter = "Service = 'ABC'";
                dtServcice =dv.Table.Copy();
                dtServcice.TableName=dtDistinctValues.Rows[i][0].ToString();
                dsFinal.Tables.Add(dv.Table);
            }